Road-drag.



. FRY.

ROAD DRAG.

Patented Jan. 9, 1917.

2 SHEETS-SHEET 2.

Patented Jan. 9, 1917.

A. FRY.

RDAD DRAG.

. APPLICATION FILED AuG.8. |915.

ALBERT rar, on Evans, COLORADO.

ROAD-DRAG.

Specification of Letters Patent. Y

Application filed. August 8, 1916. Serial No. 113,762.

To all lwhom t may concern:

lBe it known that I, ALBERT F RY, a citizen of the United States,residing at Evans, in the county of W'eld and State of Colorado, haveinvented certain new and useful Improvements in RoadDrags, of whichpanying drawings and will be hereinafterv first fully described and thenmore particularly pointed out in the claims. Y

In the drawings, Figure 1 is a perspective view of the novel mechanismdetached fromV the supporting frame or truck; Fig. 2 is a plan view ofthe complete grader; Fig. 8 is a side elevation of the same, parts beingbroken away; Fig. 4 is a detail perspective view of one of the brakes.

The truck or supportingframe consists of a bed 1 which is carried bywheels 2 and to which draft is applied in the usual manner. Scraperblades 3 are disposed below the truck and are connected with the frontand rear axles by chains 4 and 6, respectively, in the manner fully setforth in my afore-V said patent. Two blades are employed and they areconnected so as to be held in fixed parallel relation by brackets 6,clevis bars 7 being secured to the rear side of each blade and extendingforwardly therefrom to be connected with the front chain 4 so that theblades will be readily drawn over the ground.

The truck 1 is braced by suitablevcross` bars and upon the central crossbar 8, I pivotally mount a supporting bar or beam 9 from the ends ofwhich the scraper blades are suspended. The supporting beam 9*,ismounted to swing in a horizontal plane and is secured in its angularposition by' a wing nut 10 mounted upon the upper end of the pivot boltso as to bear upon the upper side Y of the beam, as will be readilyunderstood. Upon the front side ofthe beam 9, at the ends of the same, Isecure pulleys 11 over Y which pass the flexible blade suspending andadjusting members 12. rllhe said members will have their rear endssecured to the ends of the beam and pass downwardly therefrom under thepulleys 13, after which they pass up to and over the pulleys 11, asclearly shown. 'Ihe chains or cables 14 are secured tothe front and rearblades and converge upwardly therefrom to be secured to the blockscontaining the pulleys 13 so that the blades will be .thereby supportedfrom the beam.

The members 12 extend forwardly from the pulleys 11 toV the windingdrums 15 which .are mounted upon the standards 16, near the'front end ofthe truck 1, the members beingwrapped around the said drums so as to Vbeunwound therefrom or wound thereon accordingly as it is desired to loweror raise the blades. rI`he shafts of the winding drumsV arerextendedkinwardly beyond the standard 16 and upon the inner ends of said shafts,I secure hand wheels 17 which may be easily operated by the driver fromthe seat 18 provided on the truck. Thehand wheels are normally heldagainst rotation by brakes which consist of leaf springs or resilientplates 152 havingtheir forward ends .secured upon the truck and theirrear 'ends free and turned laterally to provide pedals 20 which may beeasily depressed by the feet of the driver. Upon the upper sides of thesecure the blades at any desired angular relationto the line of draftand will ho'ld Patented Jan. 9, 1917.

them in said relation against side draft. The hand wheelsf17 may beindependently member and winding the other while allow#V ing the chains4 and 5 to remain undis-Y turbed, the blades can be adjusted vertically4so as to conform to the arch oi the road and impart any desired dip tothe same.

It will be readily noted that my present arrangement permits the bladesto be adjusted more finely in a vertical plane and that the sameoccupies less space upon the truck than that formerly employed. Thebrakesl will permit any desired movement of the hand wheels if theirfree ends be depressed and will arrest Vthe movement instantly if thepressure thereon be released.

Having thus described the invention, what is claimed as new is:

l. ln a road grader, the combination of a truck, a supporting beampivotally mounted for movement in a horizontal plane, pulleys securedupon said beam at the ends thereof, flexible members secured to the endsof the beam and passing over said pulleys, other pulleys mounted uponthe said members between the iirst-mentioned pulleys and the points ofattachment of the members to the beam, a blade suspended'from thelast-mentioned pulleys, and means at the liront end of the truck forwinding or unwinding the ilexible members.

2. ln a road grader, the combination of a truck, standards erectedthereon near the front end of the same, a supporting beam pivoted on theframe for movement parallel Copies of this patentV may be obtained forwith the truck, guide pulleys on said beam, other pulleys below thebeam, a blade disposed below the pulleys below the beam, connectionsbetween said pulleys and the blades, winding drums mounted upon saidstandards, exible members secured to said drums and passing `over thepulleys on the beam and under the pulleys connected with the blade andhaving their ends secured to the beam, and means Jfor rotating thewinding drums.

3. ln a road grader, the combination of a truck, standards erectedthereon near the front end of the same, a beam pivotally mounted on thetruck for movement in a horizontal plane, winding drums mounted on saidstandards, hand wheels connected with the respective drums, brakesyieldably engaging said hand wheels, pulleys secured on the beam at theends of the same, iieXible members secured at their front ends to thewinding drums and passing over the said pulleys and having their rearends secured to the beam, pulleys mounted upon said iiexible membersbetween their rear ends Vand the pulleys on the beam, and a bladesuspended from the last-mentioned pulleys.

in testimony whereof l aiiix my signature.

five cents each, by addressing the Commissioner of Patents Washington,D. C.

